On losing the Dajuan Wagner gamble and Baron Davis to injury (though this one doesn’t appear serious) …

Dajuan Wagner is a Warrior no more. A league source told the Chronicle on Sunday that the team has bought out Wagner’s contract, which essentially means two things:

Wagner, for all his great shooting and conditioning at the start of camp, isn’t quite ready to play in the NBA again after having his colon removed a year ago.

The Warriors now have an open roster spot they can use to sign another player — perhaps an insurance ballhandler or big man — with one tiny caveat. Any addition will likely negate whatever luxury tax relief Wagner’s buyout created. Under Wagner’s original two-year deal, he was guaranteed the full veteran minimum of $771,331 this season (and had a partial guarantee on next year’s $798,328).

We’ll hear more about Wagner’s buyout Monday, when the Warriors are expected to make it official. One more possible buyout looms in Adonal Foyle, who has three years and a guaranteed $28 million left on his deal, though it would seemingly take a huge concession by Foyle to make a buyout worthwhile for Golden State.

As for Baron Davis, he’s questionable after straining a rib muscle during Saturday’s win against Seattle. A Warriors spokesman intially said that Davis had taken a hit to his rib area, but said Sunday that Davis injured himself without coming into contact with anyone.

Don’t be surprised if Davis sits out Monday’s game. As Warriors coach Don Nelson said after his guard attempted to come back in the second half Saturday: “That’s the one guy we can’t afford to lose … I told him I didn’t want to fool around and have him hurt something for several weeks by trying to play in one game. That doesn’t make sense to me. I need him for every game.”